Trouble clicking objects in EQ?Follow

Hi, Jim Nesselroad here.

I tried to do an LDoN last night from S-Ro thru Upper Guk. I couldn't get into the dungeon as clicking the barricaded doorway had no effect. I had to change computers and find the group in the dungeon (15 minutes wasted with me appearing a fool). Then on the 2nd computer I had difficulty clicking mobs the entire trip. I had no trouble with my group (being a cleric kept them healed by using the group bar and f-keys). But when I had to Paci a room, I just couldn't without the assisting the puller and getting a target that way.

Both my computers have a ATI card 9200 in one and 9700 in the other. Any thoughts?

I am posting this in the general EQ forum as well to see if anyone has advice there.