Combox react on each other

[STEEL010]

Hi There,

I have an sheet with 3 combo boxes that works independent of each other in one sheet, but when I select one it goes good but when I click the other then it reacts on the first one and then excel stop working..... what I'm I doing wrong and how can I correct this.

Your help will be appreciated.

Steel010

 

[STEEL010]

Is there someone that had the same problem???