REGRESSION: uniata: System setup hangs on 1st stage on real hardware

Created an attachment (id=6600)
Debuglog with backtrace

When i'm trying to install ROS on real hardware, in 1st stage after successfull loading all files, setup hangs and i see black screen. I've tested ReactOS rev.51735 and 1st stage finishes without any issues, but in rev.51738 (Sync with UniATA 0.41b2) and later revisions (at least r53052 where i get debuglog) system hangs. My system is:

• CPU: Intel Pentium 4 (3.00 ÃÃö);
• RAM: 4 Gb DDR1;
• MOTHERBOARD: ASUS P4C800;
• VIDEO: ATI Radeon HD 4600 Series (AH4650);
• DVD Drive: TEAC;
• 2 100Mbps LAN cards (D-Link and Realtek);
• HDD Maxtor 90431U1 4,3Gb.