WinSCP 3.7.6 hangs

WinSCP 3.7.6 hangs, when I transfer a file from my PC to a Linux (SuSE 10.0) PC. Why?

Windows-PC: Windows XP Prof., two SATA II harddisks, Board ASUS A8N SLI Premium

Linux-Server: SuSE 10.0 with Reiser FS

Brusch

How does it hangs? Can you post a log file? Did older versions work?