Table rendering takes too much time:  The whole table must be downloaded and the dimensions of everything in the table must to be known before the table can be created. That can delay the creating of your content, especially if your table contains images without HEIGHT or WIDTH functions.

Content's display and Layout problem: If any of your table's content is too large for the available display position, then the table expands to allow for the oversized content. The rest of the content then adjusts to fit the oversized table rather than appropriate the available display position. This can force your guests to scroll to read content.

Table's syntax issue: when you include tables with invalid syntax many browser's doesn't support it. Even with correct syntax but nested tables are not displayed properly in older version of Netscape.  Some browsers doesn't supports table layout. So before creating tables for your website keep these things in your mind.

Optimization issue: Some search engines use the content at the beginning of documents to evaluate it when this indicates in search results. When tables are used for framework, the beginning of documents often contains many redirecting links that appear before than actual text. So because of this some search engines ignore the tables.

According to me Rendering the table is time consuming, Problems in display and layout of contents, Search Engine Optimization Issues, Syntax issues with tables are main problem while using html tables.

I am pretty sure that in the backend core of the browser rendering engine, HTML (tables etc.) and CSS goes pretty much into the same engine when rendering the content.

Hello...
Problems while using html tables are:-
1. Rendering the table is time consuming.
2. Problems in display and layout of contents.
3. Search Engine Optimization Issues.
4. Syntax issues with tables.
Thnx...

HTML is the very useful scripting language for web design. When you put contain in table format that it can be chance the contain may be blur when you run page. So it is good to put contain DIV tag because it is not blur on run time as well as not effect when page resolution change.