Default HTC Inspire 4G stuck on black logo with 4 triangles

Hi. Hopefully someone can help me out with this. HTC Inspire 4G was stuck with red triangle a few months back.
I managed to get that fixed with help of member Gizmoe and reloading stock RUU from PC.
Everything working great until yesterday. Now out of the blue it boots to black HTC logo screen
with the 4 triangles in the corners. When I hook it up to PC , PC doesn't recognize it, BUT when I disconnect
from PC I get white screen with:
****LOCKED****
ACE PVT SHIP S-ON RL
HBOOT - 2.00.0030
MICROP-0438
RADIO- 26.09.13.17_I1
(etc etc)

RUU (which is highlighted)

NOTE: I cannot use vol - and power to get to HBOOT screen

So I'm totally stuck right now...again !!

Any help or suggestions would be appreciated.

Terry