the game screen freezes but the game is still running even the mouse cursor points to the stalls in the towns and when i press ALT it turns to a little sword (u kno to PK sumone)
when i use ALT+TAB the other programs still work like the internet explorer (the only thing i have running while playin) PLZ HELP RESOLVE THIS ISSUE!!!
here i even took a screenshot of the game when its frozen (its all black!!!)

edit:
i have windows xp bought it about a year ago DELL latest ATI graphic card thingy...
direct x 9.0
verizon FiOS internet service (35 MB per second)
intel pentium 4 3.00 GhZ 512 MB of ram...