(I split this topic because it was separate from the previous question, and is MRTG-bundle related)
The error message about another MRTG running is because the lock files (*_l) exist. If you stop the scheduler, and are sure that no other MRTG schedule is running, you can safely delete these and the problem will stop.
The pattern match errors are probably a knock-on effect of the first error.
The 'Workdir' error is mentioned in other threads. You should have a correct WorkDir defined in the .cfg file - I think one of the MRTG versions had a bug with the path separators / \ which can be manually corrected.
The popup windows is a problem with your scheduler and the bundle - since I dont use Windows I can't help out with this, but maybe someone else here has a solution?
UNIX Systems, ITSS, University of Auckland, NZ
Woe unto them that rise up early in the morning... -- Isaiah 5:11