Here is my list so far:
Graphics settings dont save when you exit. Windowed mode defaults to 1024x768 on every logon.
'grass' items drastically change their appearance even at short distances. They also render at odd angles, and appear to be flowing mid air, in many many many places.
Cant climb moderate inclines, let alone mountains, extremely annoying. Going down moderate to steep inclines is very slow as well.
Extremely 'laggy' auction interface. Having to click twice for every action, one to select the action and once to active it. For instance to get to the next page of an auction listing, you have to click the arrow twice for every single page. The first mouse click wont use the button or other element it selects it, then you need to click a second time to actually use it. Very annoying. EDIT: found out this is due tot he loading bar that pops up, every tiem it does it steals focus from the window, and you have to click something int he window to give it back focus. So this causes you to have to double click every time you get the loading bar, very annoying.
Inventory items have changed sizes, many of them back to their old sizes from several years ago. All the small items take up more inventory squares now. Many of the graphics also seem like the old style icons as well, but im not sure.
Camera bounces when you rotate it in confined spaces, like in a mobile terminal building.
Hold right mouse button + move mouse doesn't move the camera, like pretty much every other game uses.
Couldn't create target bars after playing for a few minutes. When first logging in i can create target bars in first and 3rd person. As soon as i kill a few creatures i can no longer make target bars, or click on creatures to target them. Im not sure what act causes it. This is for creatures, terminals, or any other object.
Had difficulty looting corpses when i couldn't make target bars. I could only loot the corpse if i was in first person, and mouse look mode, and had my cross hairs directly over the corpse, and then hit the right mouse button. Any other method of trying to loot i tried didn't work.
Jumping off of elevated objects causes you to get stuck when you land, you aren't able to move. After awhile it will finally let you move again.
Item view attachments bug: When you click on an item with an attachment, then click on the attachment, then click on the auction data button. It shows you the auction data for the parent item not the attachment. The item data updates when you click on the attachment, but the buttons still interact with the root item not the attachment on the item.
Run/walk is reset to walk every time you die, and every time you log in.
Map doesn't save position correctly near the right and left edges of the screen. If you hang the sub windows off the sides of the screen, it bounceds back in view on next open. Doesn't matter if the sub windows are open or closed, it still boucnes back as if they were open.
Map: Mouse clicks fall through the mouse zoom in/out buttons. Double clicks on the buttons will move the map to that location. Happens a lot if you dont realize you are fully zoomed in or out, or if you want to zoom multiple times fast. If you click twice fast you will get the position change instead of a zoom.
Chat window seems to bounce to the bottom of the screen as well. I would position it above the bottom so the window doesnt move itself whenever you open the typing box to speak. Whenveri would crash and log back in it would be moved back to the bottom of the screen again. BTW that moving window when you open the type area is extremely annoying, it shouldnt move the window arround. We need a way to keep that typing box open at a times regardless if you are typing or not. The current method is akward. Also need to be able to resize the window from any border or corner. Windows wher eyou can only resize from the bottom right corner are annoying, since it usually takes several moves and resizes to get it where you want it. Instead of just 1 or 2 simple resizes fromt he corners you actually want to move.