Fusion eats up my harddrive...

Hello Experts,

I am a new user to Mac and a new user to Fusion - so be kind if I ask silly questions...

I have the following problem: since I have installed VMware Fusion, it seems like it eats up my hard drive, day by day...

I have detected with OmniDiskSweeper a folder "vm" which contains 25 'swapfiles' each of them 1.1 GB and one 'sleepimage' file with the size of 17.2 GB. Each time I start Fusion, these files get bigger, or, another file is created.

I have a 250 GB disk in my machine, and considering the speed these files accumulate, I will be running out of space in about 2 weeks.

Any ideas? I might have done something wrong when installing Fusion.

Machine: MacBook Pro, Mountain Lion 10.8.2

Fusion: VMware Fusion 5.0.2

Thanks!