Any way to stop the process of creating a snapshot? it has been on-going for 48hrs.

It Started with me using Photoshop in Windows 7 Guest OS on Parallel 7, which frosted, together with 2-3hrs of work, in a frenzy, being a new to Parallels, my ignorance led me to frantically tried to create a snapshot of the system while the program is still frozen (That's pretty dumb... it was state of frenzy.)

Then on, 'Creating the Snapshot' process has been on-going for close to 48hours now.. and there seem to be no signs of it coming to completion. I need to use Windows again tomorrow when i get back to work, but if it doesn't stop creating the Snapshot, I'll be toasted...

Are there anyway to stop creating a Snapshot? or how long will more is it going to torment my nerves...?