233gb System partition doesn't resize - no errors - just doesn't work!

[vegasbassment]

I have a 250gb Maxtor Maxline Plus II with one 233gb system partition.
I am attempting to resize this in order to then create a separate partition.
I am setting the resize to 24gb - DDS 9 accepts everything and says it needs to reboot to complete....
So I reboot, DDS kicks into action, carries out a variety of tasks (inluding "checking partition", then "synchronizing with OS" (or something like that) all without obvious error.
DDS completes after a suspiciously short time span (30 to 60 secs) and reboots machine.
All is well, EXCEPT THE PARTITION REMAINS @ 233gb!!!

Any assistance much appreciated - yes using the latest build (downloaded this morning).

[Acronis Support]

Hello vegasbassment,

Thank you for choosing Acronis Partition and Disk Managing Software (http://www.acronis.com/homecomputing/products/diskdirector/).

Please download the latest version of Acronis drivers (http://download.acronis.com/support/SnapAPI.221_s_e.exe ), install it with disabled logging and see if the problem still persists.

If the problem still persists then enable logging by running the Acronis drivers installation package once again, reproduce the problem and collect the c:\snapapi.log file.

Please also create Acronis Report and Windows System Information as it is described in Acronis Help Post (http://www.wilderssecurity.com/showthread.php?t=55317) and submit a request for technical support (http://www.acronis.com/homecomputing/my/support/). Attach all the collected files and information to your request along with the step-by-step description of the actions taken before the problem appears and the link to this thread. We will investigate the problem and try to provide you with the solution.

Thank you.
--
Kirill Omelchenko