Dear all,
Recently when I use Topas-academic v6 do some refinment, sometimes topas strike and there does't  change anything in the jEdit. But it can still calculate the bond length and export CIF file. If I add a 0 at bkg line, it began to  work again. This problem has troubled me for a long time. Can you help me?
Yifeng Han
Number of hkls generated for C:\Topas6\sg\r3c.sg 65
Space group R3c is not centrosymmetric
   Number of equivalent positions 18
Number of hkls generated for C:\Topas6\sg\r3c.sg 65
Space group R3cH is not centrosymmetric
   Number of equivalent positions 18
  0  Time   0.07  Rwp   66.627    0.000 MC   0.00 0 P      0.001104 Chi    66.627
  1  Time   0.35  Rwp   66.627    0.000 MC  100.00 4 P      0.001104 Chi    66.628
--- 0.363 seconds ---
*** Parameter(s) close to limit(s).
    Check for LIMIT_MIN and LIMIT_MAX in Grid/Text
Bond lengths and angles calculated
Bond lengths and angles calculated
File E:\sysu\LiNbO3_GF_1_1_1SP.out updated
    with parameters from last iteration