Being that this is the first time I've heard of this, lets start with the basics.

What version of XoloX are you using? Is this the first installation, or have you upgraded from a prior version?

What are your system specs? CPU, RAM, free HDD space, OS, OS permissions (NT/2K/XP) etc. Anything which you think might be useful.

Some trouble shooting steps to try before asking more questions:

If you are running 1.03 or ealier, or have upgraded from 1.03 or ealier: Uninstall XoloX (Control panel -> add/remove programs), delete it's directory, (c:\program files\xolox by default), and remove it's registry entry "HKEY_CURRENT_USER\Software\xolox" (start -> run -> regedit)

If you are not currently running 1.12 download it here. (Also do this of you remove your current version, obviously.)

If you upgraded XoloX automatically to 1.12 from an earlier version, try deleting the above mentioned registry key, and also templist.txt from your xolox directory.