I am having trouble loading screens into dungeons, different rooms and portals. Everytime I enter a dungeon or another screen has to load my character disappears off the screen and I have to save the game at that point and than reload the same game over and over again =( lol its a pain in the butt, but its worth it. I was hoping that someone here could help me solve this annoyining problem
I am running a Intel Celeron 3.2 ghz SIngle Processor with Windows XP Home Edition

On the startup screen, click Options, click Video, click Performance and see if ZTunnel is Off, if so, turn On ZTunnel, If it is On, turn it Off.
ZTunnel allows your character to be seen (sorta transparent image) when you walk behind a building or wall. Some video cards / drivers don't handle that too well so turning it off / on may fix the problem. . . =)
If that doesn't help, try lowering the quality level on the same screen.
Make sure your video drivers are the latest version as well.
Edit: You might also Alt - Tab out of the game and make sure your firewall is not throwing up any consent dialogs behind the game screen. If it is, click allow / ok which should stop the blocking in the future and give the game full access to your hardware / software.
The worst case is you have a corrupted save file . . .=(