windows xp error ( server busy ) ?????

[mad_mike]

hi all just latly i have been havinf a error comming up saying server busy which makes internet explorer crash it only dose it if i have 2 pages open or if i leave explorer for to long not doing any thing. now i was wondeing if it was my router disconnecting me because i was unactive but i dont think it can be that as it dose it while i am voicing with friends. it only dose it on exploer not while i am playing on line games or if i only have outlook open ????

if any one could help as i dont really want to put a new os on

here is what the message says in full

server busy
this action can not be completed because the other progam is busy
chose switch to activate the busy progam and correct the problem

[glc]

Have you done full malware scans?