Here is a link (a long one but it works) that should help you solve your problem. I have used pcAnywhere for years and when I have noticed this, it is typically related to a video card driver problem.

http://service2.symantec.com/SUPPORT/pca.nsf/395b2a511976725b88256b10002f2c32/440d387517d2fd6188256a56006da5b4?OpenDocument&prev=http://search.symantec.com/custom/us/techsupp/kb/query.html?*col=kb*st=1*nh=10*pcode=pca*qp=url:us-lu,url:/pca.nsf/395b2a511976725b88256b10002f2c32*qt=%2Bexplorer%20%2Berror*miniver=pca_105*sone=pca_105_tasks.html*stg=3*prod=pcAnywhere*ver=10.5%20for%20Windows%2095/98/Me/NT/2000/XP*base=http://www.symantec.com/techsupp/pca/*next=pca_105_contact_tscs_solve.html*svy=*taskquery=error*boolean=and&sone=pca_105_tasks.html&stg=3&prod=pcAnywhere&ver=10.5%20for%20Windows%2095/98/Me/NT/2000/XP&base=http://www.symantec.com/techsupp/pca/&next=pca_105_contact_tscs_solve.html&src=sg&pcode=pca&svy=



>Hi,
>
>This is a question about PcAnywhere. I have installed pcAnywhere on my machine and set it up as the host.
>
>Every time other callers try to connect to my machine the following error occurs. Can you suggest a fix. Thank you.
>
>Neetu Kumar
>
>Header of the error window - 'Explorer'
>This program has performed an illegal action and will be shut down.
>Details -
>Explorer caused general protection fault in module I8lXDW9X.DRV at 0001:00007719