I installed ubuntu 11.10 64bit along side windows. I gave it 19GB but now i'm running out of space.
Is there any "easy" way to make it larger?
If you're comfortable with it, I recommend using the Parted Magic Live CD: http://partedmagic.com/doku.php?id=start
After booting the CD, you can use the GPartEd software included to resize the partitions.
NOTE: BACK UP YOUR DATA FIRST!
I can use the Gparted tool to do a redimentioned partition of windows. find him in "System > Administration > Partition editor. or you can download a live-cd in http://gparted.sourceforge.net/download.php.
Open Gparted, click on "update devices", click on the partition and then in Redimension. [EDIT] From Ubuntu, of course. :)