qtparted crashes under Knoppix 5.1.1

Hello,
Just burned Knoppix 5.1.1-CD. It is great! The first Linux that correctly recognizes my hard drives ... but that's another story.

I am currently trying to partition my USB disk; it is a Seagate Portable. Knoppix correctly recognizes it, Konqueror mounts it, reads it, basically no problems. The trouble starts up when I try to read it with qtparted. When I start up qtparted, it shows the disk as "present", unfortunately when I select the disk and it tries to access it, it seems to stall for a while (obviously it is doing something), and then just crashes: coredump. I had a look on the qtparted home page, but when I try to look at the current bugs I got some type of SQL error. parted alone, seems to work, however, I am not familiar enough with the command line interface to be able to repartition it the way I want it; but parted does at least "print" the correct info about the device. Anyone had a similar experience?
Oh ya: the previous version of qtparted (0.4.4) worked! Also, I tried this on two completely different computers with the same results, so I do not believe the problem is in the hardware.

Thanx, SK.

OK, it must have been user error.

I used (plain)parted to write out a new partition table, and then to create the partitions that I wanted. When I tried to read THAT with qtparted, everything worked again just fine.

Just for the heck of it, before I "fixed" the disk with parted, I first tried cfdisk. That crashed also! I wonder what the original problem was.