Impeccable, Unfailing, Trusted Upgradepath for VB. :) Vasudevan Deepak Kumar Personal Homepage Tech Gossips A pessimist sees only the dark side of the clouds, and mopes; a philosopher sees both sides, and shrugs; an optimist doesn't see the clouds at all - he's walking on them. --Leonard Louis Levinson

Hi, I've solved the problem by moving the definition of offscreenBMP to the code block, recreating it on every render and assigning it to the pictureBox in the "Paginar" method, instead of coping it in the paint event. Thanks to every one.

Finally I solved the problem. As I think it was an installation problem, to solve y find an article in Microsoft Knowledge Base: See: http://support.microsoft.com/kb/309051 I run in the command line C:>cd %windir%\system32\inetsrv C:>rundll32 wamreg.dll, CreateIISPackage C:>regsvr32 asptxn.dll C:>IISRESET /restart Problem solved. I hope this be of use to someone else, and avoid looking articles and web forums for a month or two to find the answer. :-D :-D