Nokia N95 Tomtom ? (Not another installing question)

Hi All, I have just bought a 2nd hand Nokia N95 for myself for Xmas and I have just installed Tomtom on it a couple of days ago and tested it out when I took the wife to the sales to make sure it worked ok which it did. But whilst I was waiting for SWMBO to come back from the sales I was messing with the Tomtom settings etc (as you do) when some one rang my mobile, after speaking to them I noticed the Tomtom software had closed when I received the call to my mobile ! Which got me thinking what would happen if your on your way to say a meeting and your on the motorway and your using your Tomtom on your nice new Nokia N95 and then some one rings your mobile ! Will that be enough to knock the Tomtom software off and would you then have to stop (some where safe) on the motorway and restart the Tomtom software ? Is there anyway of stopping the Tomtom software going off if some one rings your mobile ? Otherwise it seems pointless having a mobile phone with Tomtom Satnav installed on it if it can go off every time some one rings your mobile !

Cheers DGC808

I run tomtom fine, when it receives a call sometimes tom tom is still running in the background. you need to go into applications again and tom tom should have a little icon next to it to show its still running .