Slow SPV M1000 with tomtom2?

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Hi.

I dont know what is causing it, but it seems, that my SPV M1000 is REALLY SLOW on some occasions.

Having unlocked it, and after that installed tomtom2. I've been using it, and can see that there are problems with the update rate, etc.

there is a 32MB SC/MMC card installed.

Device info says:
Operater version: 3.66.4.150
ROM version : 1.66.00WWE
ROM date : 02/20/04
Radio Version : 1.10.00
Protocol version : 1337.18
ExtROM version : 1.66.150

it was unlocked with xdaUnlock2

The problem is that it appears flakey, sometimes it works flawlessly, and other times it comes to stuttering/ laggy halt. Even using the contact list showed lagginess (I think tomtom2 was running in the background), in that the lines in the contact list was updated one at a time, with around 1-3 seconds between each update..., updates on the tomtom2 map appears to take forever sometimes, and this can happen at both max and min zoom levels (although the problem is most apparent at min zoom levels).

Does anyone know a cure, or have experienced something similar? Would it help to install tomtom3? (some says its more reliable, but I've seen others using tomtom3, where a land mass became a swampy area ... well at least at some of the highest zoom-out levels.

Thank you for your time.

Best regards : Jacob Eskildsen / eskildsen