Considering 100's possibly 1000's of people have purchased and are using Keyclone I find it hard to believe that your computer issues are related to Keyclone. I re-downloaded the Keyclone file last night, from this website, and I have no issues that you speak of. I'd do a deep clean of your hard-drive.

EIther that or this is a shameless attempt at berating the name of Keyclone -glares-.

Anyways the chances that the file you downloaded from this site containing a keylogger or virus is very very slim.