Kato SD40's Derailing

[colin]

I have 2 Kato SD40's that I can't keep on the track. I have 13 Atlas, 5 Athearns and 2 Protos that I never have a problem with. Any suggestions?

 

[jbaakko]

HO? Never had a problem, but I've seen a number of issues with (to remain un-named) HO units being "warped" so that it was impossible ot track right. Not saying thats the issue, but its worth a check. If they're that frustrating, I'll take them.