Vista - Roxio Sound Editor

Having spent literally hours solving hardware and software problems
associated with the Vista Home Premium 32 pre-installed on my new PC, I keep
finding odd things which don’t work when I have occasion to use try to use
them!

Really hoping someone out there can help with latest 3 problems I have
encountered (all of which worked perfectly on old PC running XP), as I have
now wasted many more unsuccessful hours in trying to cure them!

For ease of posting, have separated into 3 questions:
1) When running Roxio Sound Editor, cannot record any sound as under
Recording Source in Tools is statement that ‘No Audio Input Sources Found’.
But all such devices are listed under Recording Device, but become greyed-out
when Record is selected. Two other pointers to what may be happening is that
at one stage Sound Editor would not even Play wav files, giving message that
there is no sound card or it is being used by another program, but
re-installing appears to have cured this. Also Roxio Capture did successfully
record from same line input (but obviously does not have all the features and
control of Sound Editor)!

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Thanks,
Alan