More Partition-space than Space on HDD in RealHW

Created an attachment (id=6913)
Setup, Partitioning-error

Hey there,

I was trying to install ReactOS and I got of course a glitchy error message, that ext3 isn't supported. There were 2 unpartitionized Partitions . When I counted all GB of the partitions I came on a size, that is bigger than the whole HDD. How can it be? Even if ext3 isn't supported the size of a partition doesn't have anything to do with ext2/ext3/hfs or whatsoever. Look at the screenshot. (sorry for that bad quality, camera on the mobile phone combined with an old piece of sh** of screen)