AnSys Help!

[sanaljure]

Hello! I'm having a little problem with AnSys. If I run my program (running it from a .txt file) and then inmediately I run it again (from the same .txt file) it won't run again... I get lots of troubles the second time... could somebody help me please? Here is my program:

/clear,start
/prep7
et,1,3
r,1,4e-2,0.133e-7,0.2
mp,ex,1,120e9
mp,prxy,1,0.29
k,1,0,0,0
k,2,4,0,0
k,3,6,0,0
k,4,10,0,0
l,1,2
l,2,3
l,3,4
lesize,all,,,10
lmesh,all
d,2,ux,0
d,2,uy,0
d,12,uy,0
sfbeam,1,1,pres,5e3,5.5e3
sfbeam,2,1,pres,5.5e3,6e3
sfbeam,3,1,pres,6e3,6.5e3
sfbeam,4,1,pres,6.5e3,7e3
sfbeam,5,1,pres,7e3,7.5e3
sfbeam,6,1,pres,7.5e3,8e3
sfbeam,7,1,pres,8e3,8.5e3
sfbeam,8,1,pres,8.5e3,9e3
sfbeam,9,1,pres,9e3,9.5e3
sfbeam,10,1,pres,9.5e3,10e3
sfbeam,11,1,pres,9.5e3,10e3
sfbeam,12,1,pres,9.5e3,10e3
sfbeam,13,1,pres,9.5e3,10e3
sfbeam,14,1,pres,9.5e3,10e3
sfbeam,15,1,pres,9.5e3,10e3
sfbeam,16,1,pres,9.5e3,10e3
sfbeam,17,1,pres,9.5e3,10e3
sfbeam,18,1,pres,9.5e3,10e3
sfbeam,19,1,pres,9.5e3,10e3
sfbeam,20,1,pres,9.5e3,10e3
sfbeam,21,1,pres,10e3,9.5e3
sfbeam,22,1,pres,9.5e3,9e3
sfbeam,23,1,pres,9e3,8.5e3
sfbeam,24,1,pres,8.5e3,8e3
sfbeam,25,1,pres,8e3,7.5e3
sfbeam,26,1,pres,7.5e3,7e3
sfbeam,27,1,pres,7e3,6.5e3
sfbeam,28,1,pres,6.5e3,6e3
sfbeam,29,1,pres,6e3,5.5e3
sfbeam,30,1,pres,5.5e3,5e3
/solu
solve