Intermittent Problem with Ignition, with NEW ignition switch!, Weird. After car warm, no-go. Next morning, no problem. ?? Options

[MikeInMunich]

Greetings from Munich Gentlemen! (IMG:style_emoticons/default/beerchug.gif)

I recently had my (cracked) ignition switch changed out. Before last night (3rd time) I had previously experienced no engagement of the starter when turning the key twice, AFTER the switch was replaced. On the 2nd or 3rd attempt however it engaged. Naturally I was like, WTF? (IMG:style_emoticons/default/confused24.gif) but as we do, let it be until the problem manifests itself more dramatically.

So, last night after some harder test driving and the engine fully warm, I parked it. 10 minutes later I went to go out again and it would not start despite 20 attempts and jiggling the key.

Before posting today I wanted to test it again, and as I had suspected could well happen, it engaged immediately on the first attempt this morning. The only (?) difference was the engine themperature.

Does this sound like it could be a relay problem?
Could a faulty or non-existent ground be the source?

Some of you may know that I have a current and ongoing thread on "intermittent hesitation with D-Jet" I will post a new report there today as well.

For you experts out there, can you reckon what may be causing BOTH of these problems?

Thanks for your time and feedback?

M.i.M.