first of all, please excuse my mistakes, english is not my main language.
Here is my problem :
Months ago, I build a city using the following mods : Industrial Craft², Buildcraft, Redpower 2, SDK Gun Mod, Too Many Items and Single Player Commands. It was in the 1.2.3 version.
Everything works perfectly.
Today, I decided to continue to play this save. And I decided to install the Mindcrack pack.
But all the Redpower' blocks are replaced by oil or some weird purple square/cross.
Here are some screens :
I disabled all the mods, except Redpower, IC² and Buildcraft, but the problem persist.
So please, can someone, at least, explain to me what the problem is ?
Is my save to old or is there any way to fix this ?
Thank you in advance for your help