Cant Flash Custom Roms...HELP!!

[fishdood12]

Ok so I have flashed many roms to the TP before. I just got a new replacment TP from Sprint and I loaded the Hard-SPL Unlocker from this thread:

http://forum.ppcgeeks.com/showthread.php?t=42503

That loaded fine, no errors just like I have done on other TP's.

Now when I goto flash a custom rom it loads the tricolor screen and it says security unlocked at the top and it looks fine.

Then it goes to the % grey screen and just sits at 0% then after a few min I get an error on the desktop.

I can load the stock upgrade ROM from the HTC site fine its just not letting me load any custom ones.

Any ideas??