Error -1133 in PT 8.0.3.250 LE

[Wire57]

Hi everyone,
searching the forum for that error -1133 hardware is used by another application, I find the last entries were in 2010.
However, this error is NEW to me in May 2013.
PC with (still!) Windows XP (SP3), RAM ca. 3.5 GB, 2 internal harddrives, Mbox.
Besides PT 8.0.3 LE I am running Sibelius 6. I have checked that Sibelius does not access the MBox, but works with my sound card (old thing by Creative).
There is no other software accessing the Mbox as well.
Until ca. 6 months, everything worked fine. But now: :-(((
I think it is poor performance that after launching PT you only get that cryptic error message without any hint which application is interfering, and you even can't access from the launch the help file to check for any further procedures.
Note: Found that there is a newer update (8.0.5.) available. I shall try this ans report here what happened.
Anyway, if someone knows an answer, please let me know.
Ok folks, updating to PT LE 8.0.5. helped in this case. Apparently, there is not other help with this trouble than reinstalling the entire thing. Quite time consuming, but better than having a usesless giant software for quite some bucks on your machine ;-)

[SKI]

Actually when you searched you should have found that error message was caused by having the wrong version installed.

That was a long time ago but still should have come up in a search.

[Wire57]

With my current PT 12.8.2 this question became irrelevant.