Gizmogaga,
Sorry I have overcome all of the entity runtime type errors I have had by usually by tracking down an erronous reference or path or by finding a bad model .x file format file description and resaving.
Are you saying that this error refers to all model entities you insert or just the Turbosquid ones? - if its just those then obviously theres something different about them and it needs isolating by trial and error.
Try using a different .x file output format or settings from within Milkshape or another prog. You have to use the correct method when outputting from Milkshape or you could possibly get an error in FPSC. Dont use the Direct X 8.0 exporter for sure.
Actually I dont have a clue what any of the runtime error number references mean and dont know if anyone other than Lee or one of the other TGC guys could help with the error refs. Lee would probably know and may be able to isolate the cause from the error ref but Lee is a busy guy I guess who works on stuff as and when so I guess this error message is lined up for looking into with all the others for possible attention whenever?
Most runtime error messages are meaningless to us end users and quite possible other than Lee or another TGC official commenting the best person to find a solution is the user themselves.
Sorry I cant advise further than that.
Like others I have one outstanding runtime error related to AI script limits and I too am at the mercy of TGC awaiting a fix or solution if possible. Its not possible for the end user to fix this one unless it could by sorted via messing with the source but I would not hold out much hope of success there.
We are all in the same boat I'm afraid. Good luck to all of us.