I just started using Adobe Photoshop CS3 and have the same problem as with Blinds 5.0:

 - the main window, when maximized keeps reducing in size

Also, all children windows are not responding to min, max and close buttons.

Unloading Blinds, everything woks OK.

System details:

Windows XP Professional Service Pack 2 (build 2600)
Processor 3.20 gigahertz Intel Pentium 4
Board: Gigabyte Technology Co., Ltd. 8I925XE-G
BIOS: Award Software International, Inc. F2 01/03/2006
3328 Megabytes Installed Memory

Display:
RADEON X850 Series - Secondary [Display adapter]
BenQ FP937s [Monitor] (19.1"vis, March 2005)

DELL 2405FPW [Monitor] (24.2"vis, s/n P654056E15AS, June 2005)

Stardock Central Version 2.42.00
Stardock Corporation - WindowBlinds 5.x for Win32 x86 Unicode Machines Version 5.50.023