Ah, deary, can ye take a look in y'er "textures" folder (FH<Media<textures) and tell me what ye see in there as well as checking out the "markings.cgf" file that is located in the FH folder directly?
Where exactly did ye put this preset? It should 'ave gone into one of the "My_Presets" folders.
Also, what markings pack did ye 'ave installed? I can only suggest that ye may need to redownload the markings pack, as it sounds like some of y'er markings files are missing.
If they are not, then we may want to backtrack to when ye first started to install the preset or right b'fore y'er markings stopped working.
