Convert NL1 tracks to NL2?

Is there an easy way to convert NL1 tracks to NL2? I see that NL2 will play some NL1, but sometimes I get an error of missing grass.jpg files.

I am a newbe to NL2, so no hits in the head for being a dummy!

Thanks!

[mkingy]

Easiest fix if I remember correctly is to change the enviroment and terrain to a NL2 enviroment/terrain through the park settings.

Basically the sim is looking for texture files that exist in NL1 but not in NL2!

Thanks, mkingy, I will try that suggestion.
richb

[mkingy]

Let me know if it doesn't work and I'll try importing one of lol240's tracks again to see if I can work out what I did!

It didn't work mkimgy. Might be because I no longer have NL1 on my drive, Had some of the NL1 files I was trying to upgrade.
Thanks, M8!
Richard