應該是yahoo messenger改變了一些係統設置

首先你看View下麵是否激活Thumbnails，如果不是就選擇它
然後在Open with選項裏，選中相應的看圖軟件，在下麵有個選項always use the selected program to open this kind of files.選中它就可以了。
如果不工作，嚐試係統恢複或卸載yahoo messenger，選擇另外一個版本安裝。

所有跟帖： 

• 全嚐試了，就差係統恢複了。能告知怎樣操作又不損壞其他 -sea123- ♀ (20 bytes) () 03/01/2006 postreply 18:24:58

• install acdsee first then remove,everything will be ok. -mzd- ♀ (0 bytes) () 03/01/2006 postreply 18:50:47

• what is 'acdsee'? Where is it and how I can get it? Thanks! -sea123- ♀ (0 bytes) () 03/01/2006 postreply 20:06:34

• http://www.acdsystems.com/ -mzd- ♀ (26 bytes) () 03/01/2006 postreply 20:48:27

• I already have the photoshop. No more photo editing -sea123- ♀ (177 bytes) () 03/01/2006 postreply 20:56:49